Many logistic drivers have to do some really big jobs from time to time, and driving in Asia could well be on the list, so it’s important to be prepared just in case you’re ever asked to drive in Asia. Firstly, you have to remember that there are going to a lot more bikes on the road, not just cycles and motorbikes but mopeds too, and these aren’t the most powerful vehicles.
That said, they are happy to weave through the traffic and as you’re driving a considerably larger vehicle you have to constantly pass them with caution, and you’re going to have to use your horn to make them aware of your presence a lot more than you would in the UK. You also need to remember that the same rules do not apply, and in Vietnam for example, people don’t always pay attention to red lights or green lights, so always be extra careful and use your mirrors constantly!